Metamorphic Superomniphobic Surfaces

Wang, Wei; Salazar, Joshua E.; Vahabi, Hamed; Joshi‐Imre, Alexandra; Voit, Walter; Kota, Arun K.

doi:10.1002/adma.201700295

Cited by 109 publications

(108 citation statements)

References 49 publications

(67 reference statements)

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“…In addition to the abovementioned superhydrophobic surfaces, superomniphobic surfaces are also significant because they can repel many liquids, including both water and oils . To the best of our knowledge, to date, the superomniphobic SMP surface has only recently been reported by Wang et al . In their work, mushroom‐like structures with re‐entrant features were first prepared on the thiol–ene/acrylate‐based thermoresponsive SMP surface, which had good toughness and impact resistance ( T g =60 °C).…”

Section: Wetting Control On Smp Surfaces Through Tuning Surface Micromentioning

confidence: 99%

Smart Wetting Control on Shape Memory Polymer Surfaces

Zhang

Cheng

Liu

2018

Chemistry A European J

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Control of surface wettability is very important, and can be realized by controlling surface chemistry or microstructures. Compared with surface chemistry, smart control of surface microstructure is more difficult. Recently, shape memory polymers (SMPs) have advanced to allow control of the surface microstructure and wettability, and thus, demonstrate excellent controllability and many novel functions. In this Minireview, recent achievements in wetting control on SMP surfaces with general hydrophobic, superhydrophobic, superomniphobic and superslippery properties are presented. Particular attention is paid to superhydrophobic surfaces, which display many novel functions, such as switchable isotropic/anisotropic wetting and reprogrammable gradient wetting. Furthermore, a new strategy that combines responsive molecules with the SMP microstructure is also described; this can be used to realize precise wetting control based on coordinated regulation of both surface microstructure and chemistry.

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Section: Wetting Control On Smp Surfaces Through Tuning Surface Micromentioning

confidence: 99%

Smart Wetting Control on Shape Memory Polymer Surfaces

Zhang

Cheng

Liu

2018

Chemistry A European J

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“…The water contact angle of the polymer surfaces increased with treatment time in the cases of PU and PS (Table ). Near‐superhydrophobic properties were observed in the case of PS330, which results from the effects of the Cassie and Baxter state . Thus, this simple and cost‐effective surface treatment method could be used as a replacement for conventional lithographic or stamping methods used to produce porous surface patterns.…”

Section: Physical Properties Of Porous Surfaces and Their Sandwich Spmentioning

confidence: 98%

Enhanced Adhesion of Polydimethylsiloxane Using an Interlocked Finger Structure

Kim

Chi

et al. 2018

Macromol. Rapid Commun.

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Silicone-based polymers have been widely used for many applications, but their extremely low surface energies and the resulting poor adhesion have been the cause for continuous problems. Herein, a novel adhesion improvement technique using an interlocked finger structure is demonstrated, which enables up to 24.8 and 7.3-fold increases in adhesion compared to the untreated and conventional plasma-treated cases, respectively. The interlocked finger structure is fabricated by surface-confined dissolution and subsequent directional melt crystallization of a solvent. After removing the solvent crystals, porous surfaces are prepared from polyurethane, polyvinyl alcohol, and polystyrene, and these are used to fabricate interfaces of interlocked finger structures with polydimethylsiloxane. The improvement in adhesion strength linearly depends on the pore depth of the prepared surfaces. This novel technique of surface adhesion could improve the performance of polymers with intrinsically poor adhesion in future applications.

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“…Shape memory materials are applied in the fields of medicine, aerospace industry, coatings, toys, optic materials, textile industry, and electronics, among others. They can also present special interesting additional attributes as self‐healing ability, for example . It is worth noting that each specific application presents particular requirements that may include the analysis of toxicity, biocompatibility, biodegradability, as well as mechanical, thermal, and chemical responses.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene

Meiorin

Actis

Montoro

et al. 2018

Physica Status Solidi (a)

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The activation of unconstrained shape recovery in bio‐based polymeric nanocomposites is successfully achieved using magnetic nanoparticle heating. The materials investigated in this work present several distinct physical and chemical characteristics worth pointing out: they can be deformed and the original shape can be recovered by remotely heating the samples above their switching temperature, which is determined by their glass transition temperatures. Also, their chemical composition is largely based on biomass (the polymeric matrix contains more than 50 wt.% of raw tung oil). Magnetic heating performance is strongly affected by both the physical properties and the concentration of the nanoparticles loaded into the matrix. The concentration of nanoparticles is associated with the formation of agglomerates or clusters, which determines the dipolar interactions among the nanoparticles. The particles used in this work are able to absorb enough energy from an alternating magnetic field to heat the matrix and initiate the shape recovery. Although the sample with the highest content of magnetic solute (10 wt.%) presents the highest degree of agglomeration, it is also the sample with the best remote activation of shape recovery, according to the temperature reached under magnetothermal measurements and the time of actuation.

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Metamorphic Superomniphobic Surfaces

Cited by 109 publications

References 49 publications

Smart Wetting Control on Shape Memory Polymer Surfaces

Smart Wetting Control on Shape Memory Polymer Surfaces

Enhanced Adhesion of Polydimethylsiloxane Using an Interlocked Finger Structure

Magnetic Remote Activation of Shape Recovery in Nanocomposites Based on Tung Oil and Styrene

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